Mercurial > hg > octave-lyh > gnulib-hg
changeset 5147:3249aec7f48c
Import from coreutils.
author | Paul Eggert <eggert@cs.ucla.edu> |
---|---|
date | Fri, 06 Aug 2004 22:30:35 +0000 |
parents | 6f0e6b24790e |
children | a7cf26af736e |
files | lib/utimens.c lib/utimens.h m4/utimens.m4 modules/utimens |
diffstat | 4 files changed, 104 insertions(+), 0 deletions(-) [+] |
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new file mode 100644 --- /dev/null +++ b/lib/utimens.c @@ -0,0 +1,63 @@ +/* Copyright (C) 2003 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify it + under the terms of the GNU General Public License as published by the + Free Software Foundation; either version 2, or (at your option) any + later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +/* Written by Paul Eggert. */ + +/* derived from a function in touch.c */ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#include "utimens.h" + +#if HAVE_UTIME_H +# include <utime.h> +#endif + +/* Some systems (even some that do have <utime.h>) don't declare this + structure anywhere. */ +#ifndef HAVE_STRUCT_UTIMBUF +struct utimbuf +{ + long actime; + long modtime; +}; +#endif + +/* Set the access and modification time stamps of FILE to be + TIMESPEC[0] and TIMESPEC[1], respectively. */ + +int +utimens (char const *file, struct timespec const timespec[2]) +{ + /* There's currently no interface to set file timestamps with + nanosecond resolution, so do the best we can, discarding any + fractional part of the timestamp. */ +#if HAVE_WORKING_UTIMES + struct timeval timeval[2]; + timeval[0].tv_sec = timespec[0].tv_sec; + timeval[0].tv_usec = timespec[0].tv_nsec / 1000; + timeval[1].tv_sec = timespec[1].tv_sec; + timeval[1].tv_usec = timespec[1].tv_nsec / 1000; + return utimes (file, timeval); +#else + struct utimbuf utimbuf; + utimbuf.actime = timespec[0].tv_sec; + utimbuf.modtime = timespec[1].tv_sec; + return utime (file, &utimbuf); +#endif +}
new file mode 100644 --- /dev/null +++ b/lib/utimens.h @@ -0,0 +1,2 @@ +#include "timespec.h" +int utimens (char const *, struct timespec const [2]);
new file mode 100644 --- /dev/null +++ b/m4/utimens.m4 @@ -0,0 +1,15 @@ +dnl Copyright (C) 2003 Free Software Foundation, Inc. +dnl This file is free software, distributed under the terms of the GNU +dnl General Public License. As a special exception to the GNU General +dnl Public License, this file may be distributed as part of a program +dnl that contains a configuration script generated by Autoconf, under +dnl the same distribution terms as the rest of that program. + +AC_DEFUN([gl_UTIMENS], +[ + dnl Prerequisites of lib/utimens.c. + AC_REQUIRE([gl_TIMESPEC]) + AC_REQUIRE([gl_FUNC_UTIMES]) + AC_REQUIRE([gl_CHECK_TYPE_STRUCT_TIMESPEC]) + AC_REQUIRE([gl_CHECK_TYPE_STRUCT_UTIMBUF]) +])
new file mode 100644 --- /dev/null +++ b/modules/utimens @@ -0,0 +1,24 @@ +Description: +Set file access and modification times. + +Files: +lib/utimens.h +lib/utimens.c +m4/utimens.m4 +m4/utimes.m4 + +Depends-on: +timespec + +configure.ac: +gl_UTIMENS + +Makefile.am: +lib_SOURCES += utimens.h utimens.c + +Include: +"utimens.h" + +Maintainer: +Paul Eggert, Jim Meyering +